Home / 12,709.62-17,539.46-7,331.97

Finding the Fourth Proportional to 12,709.62, 17,539.46 and 7,331.97

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Solution

The fourth proportional to 12,709.62, 17,539.46 and 7,331.97 is: 10,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.62 : 17,539.46 = 7,331.97 : x
  2. Step 2: Convert to fraction form
    12,709.62/17,539.46 = 7,331.97/x
  3. Step 3: Cross multiply
    12,709.62x = 17,539.46 × 7,331.97
  4. Step 4: Simplify right side
    12,709.62x = 128,598,794.54
  5. Step 5: Solve for x
    x = 128,598,794.54/12,709.62
  6. Step 6: Final answer
    x = 10,118.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.